Corkscrew



FIG. 1 is a perspective view of a corkscrew according to the invention;

FIG. 2 is a front view of the corkscrew of FIG. 1;

FIG. 3 is a top view of the corkscrew of FIG. 1;

FIG. 4 is a side view from the right hand side of FIG. 1. The side view from the left hand side is a mirror image of the right hand side; and,

FIG. 5 is a bottom view of the corkscrew of FIG. 1. 

The ornamental design for a corkscrew, as shown and described. 